I've got v1.30 firmware for both the C and R. I'll update these accordingly and keep pushing on... What do you see in X3 as far as input designations? Currently the Octa gives me signal from Dighital 1 left right and stereo, but there are no inputs that say Octa at all in Sonar...

make sure you are up to date with OctaCapture firmware (but it should be if you recently bought it) and respective drivers ...
 
when chained properly (OctaCapture in VS EXPAND mode) you will get all inputs from VS700 (including DIGITAL 1 which will have the signal of the OctaCapture DIGITAL OUT 9/10 as this is used as the clock sync line, and including DIGITAL 2 for a preamp connected to VS-700 ADAT IN) and all from OCTA-CAPTURE showing in Sonar ...
 
Maybe this helps: http://www.sweetwater.com/sweetcare/articles/connecting-the-roland-octa-capture-with-the-vs-100vs-700/
 
Manual here: http://www.sweetwater.com/sweetcare/media/2013/07/OCTA-CAPTURE_AP.pdf page 12 showing port names refering to your question
 

First comment (I think)
 
Own the set, Use the console daily (everything works), the rack also fully functional but I don't need that many inputs (or the fan noise) so I also have the VS 100 which I use as an interface. all happily working with sonar platinum and windows 10. (thanks to some very clever members of this forum - to whom I extend my gratitude).
 

Count me too. I own the whole system. I have them about 4 years and use them almost every day. When I bought it, I said to myself finally I could find a fully compatible system like what the other companies have. I thought cakewalk and roland will expand the product and make more devices to expand the faders and the rest of the stuff that a studio might need. Not only this happened, but also they abandoned the product sooner than expected. I still like my system and as I said still using them. 

I have a set! and love it but scared to upgrade to Windows 10!  Running great on windows 7
 

Runs fine on windows 10...   :-)

I finally upgraded to Win 10 and can confirm that the VS-700 set is working great.

Glad to hear you have everything working for you.

I'm a Sonar V-Studio VS-700 user and I'm wonder why Gibson, which I think owns TEAC/TASCAM doesn't offer controller/mixer that will work with the present Sonar Cakewalk DAW.

znball
I'm a Sonar V-Studio VS-700 user and I'm wonder why Gibson, which I think owns TEAC/TASCAM doesn't offer controller/mixer that will work with the present Sonar Cakewalk DAW.

Never bothered to check until l now but Tascam does have a DigiMixer with DAW interface in Mackie / HUI mode
 
http://tascam.com/product/dm-3200/
 
It's probably been in the market for a while and comes at a very competitive price compared to what we paid for the VS-700 set not too long ago ...
 
Whenever they release an upgrade and/or tighter integration with Sonar (probably just being Mackie control bug fixes plus customization options???) it may become an attractive replacement for the vs-700 set ...